Switching period indication

Abstract

Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media for switching period indication. The method comprising: at a first apparatus, determine a first switching period during which the first apparatus at least switches from a first frequency band to a second frequency band; determine that the first switching period is different from a second switching period indicated to a second apparatus for frequency band switching; based on determining that the first switching period is different from the second switching period, transmit, to the second apparatus, update information associated with the first switching period.

What is claimed is: 
     
         1 . A first apparatus comprising:
 at least one processor; and   at least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus to:
 determine a first switching period during which the first apparatus at least switches from a first frequency band to a second frequency band; 
 determine that the first switching period is different from a second switching period indicated to a second apparatus for frequency band switching; and 
 based on determining that the first switching period is different from the second switching period, transmit, to the second apparatus, update information associated with the first switching period. 
   
     
     
         2 . The first apparatus of  claim 1 , wherein the instructions, when executed by the at least one processor, cause the first apparatus to:
 receive, from the second apparatus at a starting time determined based on the update information, scheduling information for data transmission between the first apparatus and the second apparatus.   
     
     
         3 . The first apparatus of  claim 1 , wherein the update information is transmitted within a time period after trigger of the switching from the first frequency band to the second frequency band. 
     
     
         4 . The first apparatus of  claim 3 , wherein the time period precedes a further starting time for the second apparatus to schedule data transmission between the first apparatus and the second apparatus, and the further starting time is based on the second switching period. 
     
     
         5 . The first apparatus of  claim 1 , wherein the update information comprises at least one of:
 the first switching period,   a difference between the first and second switching periods, or   an indication of an end of the first switching period.   
     
     
         6 . The first apparatus of  claim 1 , wherein the instructions, when executed by the at least one processor, cause the first apparatus to:
 transmit the update information to the second apparatus on a first carrier in the first frequency band before switching to the second frequency band, or   transmit the update information to the second apparatus on a second carrier in the second frequency band after switching to the second frequency band.   
     
     
         7 . The first apparatus of  claim 6 , wherein the instructions, when executed by the at least one processor, cause the first apparatus to:
 receive, from the second apparatus, a configuration indicating whether to transmit the update information before the switching or after the switching.   
     
     
         8 . The first apparatus of  claim 6 , wherein the instructions, when executed by the at least one processor, cause the first apparatus to:
 transmit, to the second apparatus, an indication whether the update information is to be transmitted before the switching or after the switching.   
     
     
         9 . The first apparatus of  claim 1 , wherein the second switching period is indicated to the second apparatus in capability information of the first apparatus. 
     
     
         10 . The first apparatus of  claim 1 , wherein switching from a third frequency band to a fourth frequency band is further triggered, and the instructions, when executed by the at least one processor, cause the first apparatus to:
 determine the first switching period based on a switching period applied to the switching from the first frequency band to the second frequency band and a switching period applied to the switching from the third frequency band to the fourth frequency band.   
     
     
         11 . The first apparatus of  claim 1 , wherein switching from a third frequency band to a fourth frequency band is further triggered, and the instructions, when executed by the at least one processor, cause the first apparatus to:
 determine a third switching period during which the first apparatus switches from the third frequency band to the fourth frequency band;   determine that the third switching period is different from a fourth switching period indicated to the second apparatus for the third and fourth frequency bands; and   based on determining that the third switching period is different from the fourth switching period, transmit, to the second apparatus, further update information associated with the third switching period.   
     
     
         12 . The first apparatus of  claim 1 , wherein the first apparatus comprises a terminal device, and the second apparatus comprises a network device. 
     
     
         13 . A second apparatus comprising:
 at least one processor; and   at least one memory storing instructions that, when executed by the at least one processor, cause the second apparatus to:
 receive, from a first apparatus, update information associated with a first switching period during which the first apparatus at least switches from a first frequency band to a second frequency band, wherein the first switching period is different from a second switching period indicated by the first apparatus for frequency band switching; and 
 determine, based on at least the update information, a starting time for scheduling data transmission between the first apparatus and the second apparatus. 
   
     
     
         14 . The second apparatus of  claim 13 , wherein the instructions, when executed by the at least one processor, cause the second apparatus to:
 transmit, to the first apparatus at the starting time, scheduling information for the data transmission between the first apparatus and the second apparatus.   
     
     
         15 . The second apparatus of  claim 13 , wherein the update information is received within a time period after trigger of the switching from the first frequency band to the second frequency band. 
     
     
         16 . The second apparatus of  claim 15 , wherein the time period precedes a further starting time for the second apparatus to schedule the data transmission between the first apparatus and the second apparatus, and the further starting time is based on the second switching period. 
     
     
         17 . The second apparatus of  claim 13 , wherein the update information comprises at least one of:
 the first switching period,   a difference between the first and second switching periods, or   an indication of an end of the first switching period.   
     
     
         18 . The second apparatus of  claim 13 , wherein the instructions, when executed by the at least one processor, cause the second apparatus to:
 receive the update information from the first apparatus on a first carrier in the first frequency band before switching to the second frequency band, or   receive the update information from the first apparatus on a second carrier in the second frequency band after switching to the second frequency band.   
     
     
         19 . The second apparatus of  claim 18 , wherein the instructions, when executed by the at least one processor, cause the second apparatus to:
 transmit, to the first apparatus, a configuration indicating whether to transmit the update information before the switching or after the switching.   
     
     
         20 . The second apparatus of  claim 18 , wherein the instructions, when executed by the at least one processor, cause the second apparatus to:
 receive, from the first apparatus, an indication whether the update information is to be transmitted before the switching or after the switching.